HD41529B

HD44780U (LCD-II) (Dot Matrix Liquid Crystal Display Controller/Driver) Description The HD44780U dot-matrix liquid crystal display controller and driver LSI displays alphanumerics, Japanese kana characters, and symbols. It can be configured to drive a dot-matrix liquid crystal display under the control of a 4- or 8-bit microprocessor. Since all the functions such as display RAM, character generator, and liquid crystal driver, required for driving a dot-matrix liquid crystal display are internally provided on one chip, a minimal system can be interfaced with this controller/driver. A single HD44780U can display up to one 8-character line or two 8-character lines. The HD44780U has pin function compatibility with the HD44780S which allows the user to easily replace an LCD-II with an HD44780U. The HD44780U character generator ROM is extended to generate 208 5 × 8 dot character fonts and 32 5 × 10 dot character fonts for a total of 240 different character fonts. The low power supply (2.7V to 5.5V) of the HD44780U is suitable for any portable battery-driven product requiring low power dissipation. Features 5 × 8 and 5 × 10 dot matrix possible Low power operation support:  2.7 to 5.5V Wide range of liquid crystal display driver power  3.0 to 11V Liquid crystal drive waveform  A (One line frequency AC waveform) Correspond to high speed MPU bus interface  2 MHz (when VCC = 5V) 4-bit or 8-bit MPU interface enabled 80 × 8-bit display RAM (80 characters max.) 9,920-...